Can someone tell me what the difference is between the Junior 9 and the Junior 10 is? Thanks

Keith

Hey guys i have a speedline matrix rw,in need of a rear bearing,any one kno the dimensions,thanks in advance.

The cooling head design is different, the engine internals are the same.

12mm x 21mm x 5mm

how good does the junior .12 onroad motor run? does it get good run time?

hey guys just need some help choosing an rb motor for my inferno gt on-rd
this will be my 1st rb motor and will use for club racing

i had my eye on K10. anyone recommend it or have something else recommend.

thanks

thanks

I bought one of each, disasembled them and measured them already.... they are the same....cooling heads looked the same other than the stamp on top from what I could tell unless you found something else? Only actual difference I found was the engine case is powdercoated (obviously) and the backplate looks like a different casting/machine work. They are good little engines though....excellent quality for the price.

Which pipe are you guys using the for the T10RC? I'm thinking of picking one up for the GLC this year.

in what temp range do you run RB T10RC engine?
iam now running about 110 degrees celcius. and make about
5:30 min runtime, medium size track.

happy for all info that i can get.

230 to 260 F

I need some help. I have a Killer 9 with about 1.5 gallons through it and I can not get this thing tuned. Constantly sounds like it is too rich on the bottem (high idle that drops) then it seems to keep flooding out. I have to pinch the fuel line to get it started again.

I have tried to lean on the bottom then it will get to the point where the idle sounds ok but then it starts on bog on accelleration (sounds like a lean bog) at this point the needle is only about 1 turn out. I tried going back to the original setting twice and it won't even start because it is so rich on the bottom.

I have gone to a hotter plug and I am running byron's 25. I am totally lost at this point, looking at changing the carb but I was wondering if anyone had any ideas.

if it cuts out on acceleration it is your HSN, not the LSN thats too lean.... these engines like a small idle gap, a lean LSN and a richer HSN

hows everyone breaking in there new mills these days?

hows the stock 2604 pipe with the rb tj10?

any other good pipe you guys recommend?

heard the novarossi 2630 is pretty good.

The 2604 or the Capricorn 2662 work best.
I like the 2604 the best, the 2662 gives it a higher top speed but less bottom/mid power.

The 2630 is a useless pipe if you ask me, uses a lot of fuel and creates a lot of heat with less power as most other pipes.
If you want a nova pipe get the 2660 instead.